The relationship between professional wrestling and mixed martial arts has always been contentious, as both industries have long disputed the ideas that they are each others competitors. Comparisons between the what happens in the ring and in the octagon aside, the two sports are the backbone of the pay-per-view industry, and as such are rivals whether they want to be or not. Crossover between wrestling and mixed martial arts has been a two-way street for nearly twenty years with stars like Ken Shamrock and Brock Lesnar crossing back and forth between the two. While mixed martial arts is a legitimate contest as opposed to the predetermined nature of professional wrestling, both activities require a superhuman amount of determination and self-discipline. UFCs announcement that former WWE star CM Punk will be stepping into the Octagon set both fanbases buzzing as they speculated how well hes going to do in a real environment. Professional wrestlers do have an impressive record in mixed martial arts, with fighters like Batista and Bobby Lashley surprising fans in their victories. WWEs roster at the moment is full of impressive physical specimens who could more than handle themselves in a fair fight. Here are ten superstars who could just as easily make the jump to UFC.